🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997.7

Radius: 10.7

Gravity: 8.71 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.61 AU - 0.63 AU

Year: 343 Days

Day: 9.4 Hours

Environment

Temp: -153 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,293,652 km

• M1: 133,142 km (0.11 R)
• M2: 497,114 km (0.12 R)
• M3: 972,237 km (0.078 R)
• M4: 1,374,206 km (0.108 R)
• M5: 1,773,782 km (0.119 R)
• M6: 2,394,912 km (0.115 R)
• M7: 3,189,427 km (0.115 R)
• M8: 3,939,361 km (0.052 R)
• M9: 4,554,507 km (0.045 R)
• M10: 4,999,262 km (0.07 R)
• M11: 5,505,501 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842.8

Radius: 8.6

Gravity: 11.4 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.58 AU - 0.78 AU

Year: 394 Days

Day: 8.7 Hours

Environment

Temp: -147 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 72,293,652 km

• M1: 106,962 km (0.04 R)
• M2: 594,502 km (0.068 R)
• M3: 886,367 km (0.04 R)
• M4: 1,294,620 km (0.096 R)
• M5: 1,574,667 km (0.107 R)
• M6: 1,919,640 km (0.118 R)
• M7: 2,551,840 km (0.117 R)
• M8: 2,836,824 km (0.067 R)
• M9: 3,758,198 km (0.077 R)
• M10: 5,243,106 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.9

Radius: 10.2

Gravity: 5.01 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.64 AU - 0.74 AU

Year: 403 Days

Day: 8.2 Hours

Environment

Temp: -164 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,293,652 km

• M1: 126,859 km (0.037 R)
• M2: 531,222 km (0.09 R)
• M3: 864,975 km (0.089 R)
• M4: 1,220,868 km (0.105 R)
• M5: 1,724,714 km (0.093 R)
• M6: 2,077,765 km (0.083 R)
• M7: 2,599,413 km (0.102 R)
• M8: 2,922,394 km (0.073 R)
• M9: 3,250,313 km (0.077 R)
• M10: 3,662,156 km (0.052 R)
• M11: 3,981,099 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308.1

Radius: 14.7

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.83 AU - 1.03 AU

Year: 630 Days

Day: 13.9 Hours

Environment

Temp: -174 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 72,293,652 km

• M1: 182,809 km (0.088 R)
• M2: 692,788 km (0.062 R)
• M3: 1,282,203 km (0.099 R)
• M4: 1,810,134 km (0.111 R)
• M5: 2,887,688 km (0.102 R)
• M6: 3,570,303 km (0.114 R)
• M7: 4,428,845 km (0.035 R)
• M8: 5,453,590 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168.6

Radius: 11.3

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.04 AU - 1.18 AU

Year: 822 Days

Day: 11.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 72,293,652 km

• M1: 140,472 km (0.107 R)
• M2: 492,327 km (0.108 R)
• M3: 1,092,513 km (0.105 R)
• M4: 2,148,076 km (0.058 R)
• M5: 2,789,103 km (0.092 R)
• M6: 3,494,157 km (0.111 R)
• M7: 4,058,291 km (0.083 R)
• M8: 4,755,567 km (0.049 R)
• M9: 5,433,694 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 484.5

Radius: 11

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.03 AU - 1.33 AU

Year: 901 Days

Day: 6.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 72,293,652 km

• M1: 136,732 km (0.074 R)
• M2: 517,908 km (0.094 R)
• M3: 953,537 km (0.05 R)
• M4: 1,481,617 km (0.057 R)
• M5: 1,827,787 km (0.115 R)
• M6: 2,189,066 km (0.095 R)
• M7: 2,576,225 km (0.087 R)
• M8: 3,033,994 km (0.086 R)
• M9: 4,269,673 km (0.1 R)
• M10: 4,759,905 km (0.097 R)
• M11: 5,125,223 km (0.095 R)
• M12: 5,912,557 km (0.094 R)
• M13: 6,522,916 km (0.088 R)
• M14: 6,974,702 km (0.042 R)
• M15: 7,447,431 km (0.03 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244

Radius: 12.3

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 1.24 AU - 2.02 AU

Year: 1463 Days

Day: 13.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 72,293,652 km

• M1: 153,039 km (0.106 R)
• M2: 600,486 km (0.076 R)
• M3: 1,027,139 km (0.069 R)
• M4: 1,435,392 km (0.086 R)
• M5: 1,880,595 km (0.04 R)
• M6: 2,280,171 km (0.111 R)
• M7: 2,678,101 km (0.046 R)
• M8: 3,336,033 km (0.103 R)
• M9: 4,052,457 km (0.098 R)
• M10: 5,084,832 km (0.077 R)
• M11: 5,933,052 km (0.034 R)
• M12: 6,585,597 km (0.089 R)
• M13: 7,474,059 km (0.072 R)
• M14: 7,934,970 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 338.9

Radius: 6.9

Gravity: 7.12 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 5.42 AU - 6.62 AU

Year: 10383 Days

Day: 20.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,293,652 km

• M1: 87,515 km (0.115 R)
• M2: 343,477 km (0.032 R)
• M3: 1,692,401 km (0.075 R)
• M4: 1,925,773 km (0.078 R)
• M5: 2,979,990 km (0.116 R)
• M6: 3,457,805 km (0.084 R)
• M7: 4,216,266 km (0.115 R)
• M8: 5,414,545 km (0.09 R)
• M9: 6,159,244 km (0.059 R)
• M10: 10,493,393 km (0.04 R)
• M11: 15,486,222 km (0.062 R)
• M12: 21,159,422 km (0.077 R)
• M13: 21,392,795 km (0.105 R)
• M14: 22,102,936 km (0.096 R)
• M15: 23,904,992 km (0.071 R)
• M16: 26,247,694 km (0.106 R)
• M17: 35,703,776 km (0.063 R)
• M18: 38,292,417 km (0.06 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 925.5

Radius: 6.9

Gravity: 19.44 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 6.61 AU - 9.41 AU

Year: 15935 Days

Day: 23.8 Hours

Environment

Temp: -237 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 72,293,652 km

• M1: 85,869 km (0.075 R)
• M2: 479,461 km (0.1 R)
• M3: 999,164 km (0.077 R)
• M4: 1,384,379 km (0.105 R)
• M5: 1,958,535 km (0.1 R)
• M6: 2,898,908 km (0.103 R)
• M7: 3,181,648 km (0.079 R)
• M8: 3,684,296 km (0.118 R)
• M9: 4,402,067 km (0.108 R)
• M10: 4,989,987 km (0.118 R)
• M11: 6,363,445 km (0.101 R)
• M12: 7,114,276 km (0.062 R)
• M13: 7,392,828 km (0.06 R)
• M14: 12,099,326 km (0.061 R)
• M15: 12,631,296 km (0.102 R)
• M16: 13,813,269 km (0.12 R)
• M17: 14,991,352 km (0.055 R)
• M18: 18,055,266 km (0.104 R)
• M19: 21,034,508 km (0.096 R)
• M20: 21,706,202 km (0.113 R)
• M21: 25,387,656 km (0.102 R)
• M22: 27,037,272 km (0.067 R)
• M23: 28,060,671 km (0.075 R)
• M24: 28,757,049 km (0.089 R)
• M25: 29,109,502 km (0.036 R)
• M26: 31,908,627 km (0.027 R)
• M27: 33,308,564 km (0.104 R)
• M28: 33,827,669 km (0.094 R)
• M29: 34,352,159 km (0.096 R)
• M30: 50,990,135 km (0.096 R)
• M31: 54,141,564 km (0.097 R)
• M32: 59,869,217 km (0.052 R)
• M33: 61,799,778 km (0.06 R)
• M34: 67,632,001 km (0.102 R)
• M35: 70,574,441 km (0.111 R)
• M36: 71,001,693 km (0.106 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 506 - 14,184 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit